Feeder for ingot molds



. B. H. HOWARD ET AL FEEDER FOR INGOT MOLDS Filed NOV. l924 2Sheets-Sheet l .B. H. HOWARD ET AL FEEDER FOR INGOT MOLDS Filed Nov. 1,1924 2 Sheets-Sheet 2 Patented Jan. 13,1925.

UNITED sTATEs PATENT OFFICE.

BLoomrIELn II/HOWARD, or WASHINGTON, nrsT-RIoT or COLUMBIA, AND ERNESTJ.

. TURNER, or PITTSBURGH, rENNsYLvANIA.

FEEDER FOR INGOT MOLDS.

Application filed November 1, 1924. Serial No. 747,327.

To all whom it may concern:

Be it known that we, BLOOMFIELD H. HOWARD and ERNEST J. TURNER, citizensof the United States, residing, respectively, at Washington, District ofColumbia, and Pittsburgh, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inFeeders for Ingot Molds, of which the following is a specification.

Our invention relates to improvements in feeders for'ingot molds.

The object of our invention is to provide a feeder adapted to be readilyinserted into and held upon the upper end of the mold and at the sametime provide a feeder that will prevent the formation of what is knownas piping and at the same time reduce segregation.

Another object of our invention is to provide a feeder for ingot moldshaving means whereby it is firmly held in the upper end of the mold, andat the same time provide means to allow for any slight variations in therelative size of the bore of the mold and the exterior diameter of thefeeder.

A further object of our invention is to provide a simple, cheap andefl'ective feeder made of refractory material and having certain detailsof structure and combination of parts hereinafter more fully set forth.

In the accompanying drawmgs:-

Figure 1 is a perspective view of a mold showing our improved feederapplied there to.

Figure 2 is a transverse vertical sectional view of Figure 1.

Figure 3 is a top plan view of a circular feeder. I

Figure 4 is a vertical transverse sectional view similar-to Figure2showing the u per end of the feeder of a slightly modified form.

Figure 5 is a top plan view of our improved feeder of a rectangularform.

Figure 6 is a transverse vertical sectional view similar to Figure-2showing the upper end of the feeder of a further modified form.

Figure 7 is a pers ective view of an ingot mold showing'anot er modifiedform of feeder applied thereto.

Figure 8 is a transverse vertical sectional View of Figure 7.

Figure 9is atop plan view of acircular mold and feeder embodying theform shown in Figures 7 and 8.

F1gure 10 is a transverse vertical sectional view showing a stillfurther modified form of feeder.

Figure 11 is a top plan view partly broken away-showing a fluted feederapplied to a correspondingly shaped mold.

Figure 12 is a top plan view partly broken away showing a circularfeeder and mold embodying the form shown in Figure 10.

Referring now to the drawings 1 represents the mold and 2 the feeder.The feeder 2 as shown in Figures 1 and 2 is of a square form having thewalls thereof at its upper end thickened as indicated at 3 and the walls4 at the lower end comparativelythin, and

the upper thickened wall 3 connected to the thin wall 4 by a convexportion 5. The bore 6 of the mold, as clearly shown is of the samediameter throughout its length.

In the modification shown in Figure 4, the thickened upper portion 7 ofthe mold is connected to the thinner lower portion 8 by a convex portion9 which is arranged in a greater are of a circle than the convex portion5 of the form SEOVVD. in Figures 1 and 2.

In Figure 5 we ave shown the mold 1 rectangular, and the feeder 10 of acorre sponding shape.

In Figure 6, the upper thickened portion 11 of the feeder has its outerface convex and starts from the extreme upper end 12 and terminates atthe reduced portion 13.

In the modification shown 1n Figures 7 and 8 of the drawings, the feeder14 has the thickened ortion 15 beveled at its upper end as in icated at1,6, and the enlarged upper end of the feeder is connected to the lowerreduced end by the convex portion 18.

In the modification shown in Flgure 10 of the drawings, the feeder 19has a very short thickened portion 20, the'entire outer wall 21 beingconvex and connected to the reduced lower end 22. The bore 23 of thefeeder has its lower end beveled as indicated at 24.

In the modification shown in Figure 11 the mold 1 is of a fluted formand the feeder 25 of a corresponding shape to readily fit in the bore ofthe mold.

In Figure 12 the mold is of a circular form and the feeder 26 ofacorresponding form.

Having thus fully described our invention what We claim is 1. A feederfor ingot molds comprising a body portion having one end of greaterdiameter than the other end, and connected by a convex portion.

2. A feeder for ingot molds comprising a thickened body portion having aconvex portion connecting it to a portion of less 1 diameter.

3. A feeder for ingot molds comprising a body portion having one end ofa greater diameter than the other, these two portions connected by aconvex portion and holding the feeder firmly in the-bore of molds ofdifferent diameters.

4. A feeder for ingot molds comprising a body portion having anunrestricted bore therethrough, one portion of the body of greaterdiameter than the other portion, and the two portions connected by aconvex por tiona 5.'A feeder for ingot molds comprising a body portion,the upper portion of Which'is of a greater diameter than the lowerportion and the two portions connected by a convex portion.

'In testimony whereof we afiix our signatures. 1 I

BLOOMFIELD H. HOWARD. ERNEST J. TURNER.

